Power-transmission mechanism.



J. A. MoGBE. POWER TRANSMISSION MECHANISM.

APPLIOATION FILED FEB. 11, 1913.

Patented Apr. 14, 1914;

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' I. A. MQGEE.

POWER TRANSMISSION MEGHANI SM. APPLICATION FILED rmai 191a.

1,092,932. Patented Apr. 14, 1914. 2 SHEETS-SHEET 2.

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WW I mung n -5 g WITNESSES; //v VE/V 7273. K fifiwwwz, JOSEPH/977 655,

- To all whom it may concern:

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ro'rnansiuissron rrsonianisni.

Application filed February 11, 1913. Serial No. 747,615.

Be it known that I, Josnrrr MoGEE, a

citizen-of the United States, residing at Big Spring, in the county ofBoone and State ofllndiana, have invented certain new and ';useful'Improvements in Power-Transmission Mechanism, ofwhich the following is aspecification.

Theobject of'this invention is to provide a friction drive gearing forautomobiles, motor trucks, and other conveyances carryingtheir .ownmotive power, wherein .a'pair of disks-rotating at a uniform continuousspeedv .arejmade to drive a wheel mounted between aiidcontacting withboth of said disks, in forward or reverse direction, and at desiredspeed from" nothing to the maximum as determined by the greatest diameter of "the disks, by changing .the distance of the-driven wheel fromthe axis of rotation of the two disks.

" Another object is to transmit motion of rotation from the driven wheelto the axle of the conveyance, or the differential mechanism thereon,through the shaft on which the'driven wheel ismounted.

Still another object'of the invention is to provide end-thrust bearingsagainst the outer ends of the shafts on which the pair of. disks aremounted, and to provide means under the control of the operator forvarying the pressure in opposition to said endthrusts, as, for example,to lessen it while the position of the driven wheel radially of thedisks is beingchanged.

The object, also, is to provide means for applying pressure against theouter sides of the disks opposite their places of contact with thedriving wheel to increase the friction between said disks and wheel, andto provide automatic means for regulating said pressure.

.1 further object of my invention is to provide automatic means forvarying the angular relation of the two disks to each other, in order tosecure the requisite frictioncontacts'with the driven wheel, at thedifferent positions of the latter with relation to the axis of rotationof the two disks.

I accomplish the above principal objects, and also other minor objectswhich will hereinafter appear. by the mechanism illustrated in theaccompanying drawings, in which ,Figure 1 is top plan view of thechassis of an automobile equipped with my 1n,ven-

tion, and showing the driven wheel at a position close to low speed.Fig. 2 is a like view on a relatively larger scale, of the partwhich'particularly illustrates my invention, and showsv the driven wheelat the position of high speed. Fig. is a view in side ele vation of thesame mechanism which is illustrated in Fig. 2, and on the same scale asFig. '2, and Fig. i is a fragment in side elevation illustrating themechanism for regulating' the pressure of the pressure wheelsagainst theouter sides of the friction disks. I Like characters of referenceindicate like parts throughout the several views of the drawings. a

1 is the frame of an automobile, 5 the front and 6 the rear axlethereof, 7 the engine, here shown as a four-cylinder internal combustionengine: 8 is the radiator, 9 the fly wheel which has the usual frictionclutch 10, and 11 the housing within which is a universal'jointconnection between the engine crank shaft (not shown) and its eX-tension 12.

18 is a housing supported bythe rear axle 6. within which thedifferential gearin; (not shown) is assembled. from the connectionwiththe engine crank shaft at the universal joint, extends longitudinally ofthe frame -.'l to the differential gear in housing; 1.3. transverselyseparated parts 12 and 14, the adjacent ends of which parts bothterminate with flanges 15, which are connected by a surrounding collar16, here shown as being" partly formed as the rear hub extenfrictiondriving. wheel 17 is mounted upon and rotates with the shaft 12.

Contacting with the periphery of the wheel 17 at two diametricallyopposite points of the latter are the friction disks 18 and 19. Thesedisks are mounted on stub shafts 20, which are journaled on rollerbearings 21 in boxes supported by the frame a of the machine. The boxes22 are preferably secured-to the frame by. vertical pivots 23, by whicha swinging adjustment of the stub shafts 20 is secured which. allows forthe relative angular adjustment of the adjacent sides of the disks 18and 19 to This shaft is in two.

The shaft ,sion of a friction driving wheel 17. The I facilitate theadjustment thereagainst and t is secured by any "end 1;

' ried b t v ards 3.5..

whe and it is mounted on the shaft .14 so as to have motion of rotationwith and longitudinal adjustment on said shaft, This u tab e iheansa ythe a line of thsdraw ngs A justmentt e driven Wheel 24, rad al y oftdisks 8 and 19, and longittdinellyof the shaf ghen theshaft 46 1s rocked1n an opposue s ured by a re 2 'j ng gi g "circumferential shans ill the'rearwardly-extendmg hub of thewheeil 24 The rod 27 connected atits-forward inks 29 wi a pa r of m 59 has end hearings in th frame 4 andis rocked means of stra ver 32.. Thelever 52 as a siestangage no ches.in e segmental reek Eldon thfiitlt o t .fmme Whereby giren I9911 1Ql1 ofthe lev 32 e re ns.- The rod 27 guided by sleeve 84 suppor d by th 13 984 fililltl The range of movement of; the driven. Wheel 24 is from that.shown in Figs 2 and. 5 near th re est-diam t rs the disks 1 and 19,, toa positionof reverse drive which ese y the move meat of the Wheel 24 tothe P Osite Side of at'low' speed t ainable, which decreases to thg 15of revolution of sai disks from that "of high speed show in g 2 One ofthe intermedia e posit ons is Shown in Figzl, which represents the dri eWheel bat not at the lowest. spee nothing at q the axis of rotation ofthe two disks As both the driving. and the driven con:

tacts with thedisks 18 and 19 are made against the sides of the latter,a very C91} siderable end=thrust is levels on their stub shafts 20; anditis there desirable to secure adequate hearings against the out ends ofthe shafts 2Q;

- secure the desired results by terminating shafts 20 at their outercircular disks 36, and adjacent to-each of these I provide similar disks37, and-in their acent facesl form the opposing halves f aball race, inwhich balls 38 are assembled,-

as shown, The outer disks 37 are supported. on vertical pivots .40 insuitable openings in. their respective levers he shor arms of the levers41 are pivoted inlwr zontal slots in brackets 42 to coiled -sp ngs (seeFig 2), to insure a yield ng pr r of. the levers when the 43 aOverstrained; and the opposi e lohgarms of the lovers 41 are connectedby horizontal links 44. with sleeves 45 mounted on a rock shaft 4 46supported by the frame 4 and extending shaft The shaft 46 has an arm 49,which a rock sh ft 1? The rock haft 31 wheel becomes a tendencyto-lessen the frlctlon contact ,between the two disks and the wheel, andthe efliciency of'the transmission is pro'portionately reduced. Toovercome this I provide arm (54 t rminating The rings operate With'the m3P"; Proved means-for reducing the friction:- I

one direction, the action of cams 48 against cams 45 will move thelatter inwa1'dly on shaft 46, thereby swinging the long arms of thelevers 41 inwardly and lncreasingthe.

p essgre of disks '37 against disks 36; and

pct-ion thetension-of the springs 43 will re tn the levers 41 and ans toh r first possess Inter faces of. dishslii and 1%; his to Wfiil! orother causes, malie it desirhble to release the pressure of said disksagainst Wheel 24 while the latter is being shifted mam-lrgor saiddisks,and this release is secure by rocklng the shaft 46, in the properdirection as above described, to secure the desired resu As the wheel'24ismoved closer to the axis of rotation of the disks 1 and l a i gmovement the p m re manifest, a d.- this has means for swinging thedisks 18 and 19 toward each other and against the wheel 24 larities'ihthe hearing H1 v state f o act w th the progressively as the wheeltravels forwardon its shaf 1 This s secu e in urse:

tron with the f'glYQt/al mounting of the boxes :gg gr; frame 4 by meansof the vertical pivots 2;}, already descrlbed, and also byadditionalimseh's which I' will wsdlescribe-vv rearward y P j n inetsentiie inconjunction wit ecs centrics-66 on .vertical shafts 67supported by the frame 4. Arms 68 extend inwardly hash-her has a fromthe upper ends ofthe. shafts 67, and

re provided with slots 69 at their inner ends; Secured-to the'yoke 28'is a T-shaped member; the cro s 29 of which h pins 79 wh ch pass throughslot 5 in the arms 68. By this construction, when the Wheel 2-1- ismoved forward by the rod 27 and yoke 28, the arms 68 are swung in thesame direction by connection with the yokethrorigh the T shaped memberand the cam shattsfit' are ro in a direct on to swing 1 the arms. 64 d ythereby sw g ng the disks 18 and 19 in against thewheel'24 1 cpeasinglyas the latter moves forward on the cumulativ movement the no diskssward'the wheel'gt, whi h is desir can A maximum pressure of the twodisks yoke '28 in'two telescoping memberswhicb are heldfrom extensionbya. compression shaf 4- This action isaatome ic, and the spring 73, butby compressing the spring the V StEln will be lengthened soas to permitthe matically rocked by the travel of rod 27.

inward movement of wheel 2% without additional swing of the disks 18 and19 against it. The outward swing of the disks 18 and 19, away from thedriving wheel 1'7, is 'prevented by pressure wheels 7a, bearingagainstthe outer sides of disks 1S and 19 at places directly oppositethe contacts of wheel 17 with said disks. I

Each pressure wheelT-l is loosely mounted on its horizontal shaft 75.One end of shaft is hinged to the adjacent box 22, and the opposite orfront end of the shaft terminates with a ring 76 which surrounds aneccentric 77 on a vertical rock-shaft 78. The lower end of therock-shaft 78 has a socket which receiizes a ball 79" (shown in dottedlines in Figs. 3 and l), theball being on a bracket which is attached tothe frame ti. This provides a support for the lower end of the shaft 78which permits of a universal swingingadjustment of the upper end of theshaft. By suitably rocking the shaft- 78 the shaft 75 will be movedtoward the adjacent disk carrying its wheel '74 into contact with thedisk. This rocking of the shaft 78 isse cured b an arm 79..the end ofwhich is longitudinally slotted and receives a pin 80 car-. ried by rod27. The shafts '78 are thus auto- A regulated pressure is at all timesinsured by a spring 82 between the eccentric ring 76 and the nearestlever 41. The ends of thespring 82am seated in suitable sockets in thering and lever. as rhow'n. The pressure of the wheels 71 may be releasedby rocking shaft 46 in a direction to swing the levers 4.1 outwardlybecause such outward movements of levers 41 release the pressure ofsprings 82 against the vertical rock shafts e8.

.The mechanism controlled by the rock shafts 67 may be omitted. ifdesired. and the pressure wheels 7 and above described op erative partsrelied upon fordro-lding the disks 18 and '19 against wheels 17 and 24c,or

the wheels 74 and these operative parts may,

if desired, be omitted and in either case good results will be obtained.

Thave explained the operation of the various parts ofmy device so fullyin connection with their detailed description that the operation of myinvention is well understood from what has been said. and furtherdescription is deemed unnecessary.

\Vhile I have described-my invention with more or less minuteness asregards details of construct-ion and-arrangement and as being embodiedin certain precise forms I do not desire to be limited thereto unduly orany more than is pointed out'in'the claims. On the contrary, Icontemplate all proper changes in form,

and the substitution of equivalents as circonstruction and arrangement.the omission of nn1nater1al elements ,pair of opposite friction disks, arotating cumstances may suggest or necessity render expedient.

I claim 1. in a power transmission mechanism, a

driving wheel between and drivingly contacting said disks, a wheelbetween the two disks driven by friction therefrom, means for moving thelast wheel diametrically of the disks. and automatic means operatingsimultaneously with the movement of said last wheel for varying theangular relation of said two disks to each other.

In a power transmission mechanism, a

. driving wheel between and drivinglvcointacting said disks, :1 wheelbetween the two disks driven by friction therefrom, means for moving thelast wheel diametrically of the disks. means for varying the angular g5relation of said two disks to each other, and

means for aiuomatically varying the distance between the two disks asthe driven wheel is moved with relation to the driving wheel.

3. In a power transmission mechanism. a pair of opposite friction disks.a rotating driving wheel between and drivingly contacting both disks.pressure wheels bearing against the outside of the friction disksopposite the points of contact of said driving wheel. a friction wheeldriven by said disks,

means for moving the last wheel diametrically of said disks, and meansfor automatically varying the distance apart of said pressure wheelsagainst their disks as'the driven wheel is moved diametrically of thedisks' 4r. Tn a power transmission mechanism. a pair of substantiallyparallel and opposed friction disks. a rotating driving wheel betweenand drivingly contacting both of said disks. a driven friction wheeldriven by said disks 'neans for moving the last wheel diametri ally ofsaid disks, and automatic. means for arying-the distance between the twodisks as the driven wheel is moved with relation to said driving wheel.6

In a power transmission mechanism, a

' .pair of substantially parallel and opposed friction disks. a rotatingdriving wheel between and drivingly contacting both of said disks, adriven friction wheel driven by said: disks. means for moving the lastwheel dia-Z, metrically of said disks, and automatic means forincreasingly forcing the two disks toward said driving wheel as the'driven: wheel is moved toward said driving wheel.

6.; In a power transmission mechanism, a pair ofsubstantially paralleland opposed friction disks. a rotating driving wheel between anddrivingly contactingboth of said disks, a driven friction wheel drivenby said d isles means for moving the last wheel diametrically of saiddisks, pressure wheels 1:0

. disks bearing against the outsideof the friction opposite theircontacts withsaid driv mg wheel, and automatic means for vary ing thepressure ofsaid-pressure wheels as the driven wheel is moved withrelation to sai d driving wheel.- a

disks; a driven friction '1. In a power transmission mechanism, a pairof substantially parallel and opposed friction disks, arotating drivingwheel be- -tween and drivingly contacting both of said wheel driven. bysaid disks, means for movin the last wheel dia nctrically of saiddisks,pressure wheels bearing against theoutside of the-friction for movingdhewheel diametrically [of for varying. the ang'uv saiddisks, and means larrelation of the two disks to each other as the distance of the wheelfrom the-axis of rotation of the disks is varied. 9. In a powertransmission mechanism, a pair of continuously rotating disks, a wheeldriven by said disks, ln'eansfor moving the wheel diametrically of saiddisks, and elastic means forvarying'the angular relation of the twodisks the disks is varied.

to each other as the distance of the wheel from; the axis of rotation'of 10. In a powertransmission mechanism, a

pair of continuously rotating disks, a wheel driven by said wheeldiametrically of said disks, and automatic means for varying the angularrelatioupf the two disksto each other as the distance of t-hewheel fromthe axis of rotation of the two disks varies. g

11. ,II! a power transmission mechanism, a pair of continuouslyrotatingdisks, a wheel driven by said disks, means for moving the wheeldiametrically of said disks, and means Copies of this patent nay beobtained for five 'centseach, by addressingl -the disks, means formoving the forincreasi-ng'the angular relation of the d1SkS to eachother asythe wheel mov d fromya position of'maximuin'speed, and for ismoved toward said positionp-of maximum 12. Ina power transmissioma pairof-contlnuouslyrotatlng disks, a; wheel drivenby Said. dlsks', meanselastic means for increasing" the angular relation of the disks to eachother v as the wheelis moved from speed, and, for decreaslng saidangular rela tion as-the wheelis n1oved toward said posi tion 'of'm'aximum speed. -13; Inga.

ower transmission, a pair of which the disks are mounted, journalboxesin which the shafts are mounted, means for permit-tingof a swingingadjustment of the boxes laterally of the stub shafts to vary the other.a wheel driven means for moving the of said disks, and means associatedwith the movement of the wheel for automatically swinging said. journalboxes to varyth'e angular relation of the two disks as said wheel ismoved between them.

by the two disks,

my hand and seal at ninth day nine hundred and thirteen.- i

4 JOSEPH A. [Ls] lVitnesses: SiMnoN Cox,

i I.'H. MoMUR'rm'.

Washington, D. 0."

decreasing said angular relation "as the Wheel,

I I y for movingtheywheli diametrically of-said disks, and automatictinuously rotating disks, stub shafts on,

angular relation of the two disks to each.

Commissioner of Patents, I

a i aposition of maximum e5 continuously "rotating disks, bh ft fi,journal boxes; having" "a swinging adjustment laterally of t'or moving;the

wheel diametrically ln witness whereof, I, have hereunto, set. I

Sheridan, Indiana, this of January, A. D one thousand

